You learned in physics classes (but you may not remember!) that condensation is a physical phenomenon that happens when the steam passes into the liquid state. In the camps, the condensation can be observed inside the tents sobreteto when, after a night camping, the inside of the walls wet dawn.
Nthis situation, don’t think it rained and water penetrated by tissue during the night. In fact, this means that there was little exchange of air between the inside of the tent and the external environment. This creates a difference in temperature and causes the internal moisture (hotter) condense when you find sobreteto tissue (colder).
The influence on condensation
Consider that, when leaving your body, the warm, moist air must pass through two barriers to exit the tent: first, the fabric of the room, and then the sobreteto. With that in mind, we have listed below the factors that influence so that condensation will happen:
Fabric of the room
The hot air, check out inside the tent, you need to cross first the bedroom wall. That is why, in the technical specifications of the majority of the tents, we read that the room is in breathable fabric. And, besides being in breathable fabric, usually part of the room is a mosquito net screen, which facilitates more air circulation in many models, the screen area of mosquito net is already strategically positioned in front of the window of the sobreteto, to facilitate the passage of air. Naturally, the larger the screen area of mosquito netting, more easily the air has to move and find a way out.
That with respect to the tents that have room and sobreteto. In the case of outdoor single wall tents condensation’s situation is more complicated because instead of condense on the wall of the sobreteto the droplets condense on the wall of the bedroom and when dawns they start leaking inside the tent or drain the inner wall, wetting the inside of the tent.
Types of sobreteto
As we explained, condensation happens when there is little air exchange with the external environment. The sobreteto has the primary influence on this phenomenon, since it is your proofing that prevents this Exchange. So, the more closed, less air exchange and the greater the chance to condense. In tents whose sobreteto is opened, the chance of condensation is minimal.
Amount of sobreteto Windows
Still on the sobreteto, another factor that influences the air circulation is the quantity, size and location of ventilation Windows. If the sobreteto fabric is waterproof, the air needs to find other openings to get out. So, the more Windows and bigger, the smaller the chance to condense. Of course, if they are kept open!
Distance between the sobreteto and the ground
Another aspect that influences the air exchange with the external environment is the distance that the sobreteto is on the ground.When the cold air enters the tent beneath the sobreteto, he naturally “pushes” the hot air out through the Windows, which are at the top, making indoor air to circulate between the outside and inside and keeping a thermal regulator. But if this space is too small, the air has difficulty entering and this process does not happen.
It is worth commenting that in some tents that have skirts, likeNepal, this natural movement of air circulation even more committed. A solution, if you want to facilitate the entry of air, is stalling and fastening the skirts.
Tent size x temperature
Evaluate now the ease of the body heat up the tent, one should take into account two factors: the size of the tent and the amount of people inside.
The bigger the tent, more difficult to heat up the whole internal area to the point that she begins to condense. Following this same principle, the more people sleeping and breathing inside the tent, more easy and quickly happens this heating, which facilitates the condensation.
That is, a person alone in a big tent is less likely to wake up with sobreteto wet walls that a person in a small tent or several people in a large tent.
How to avoid condensation in the tent
Based on everything I’ve ever commented, the way to avoid condensation is simply to facilitate the exchange of air between the internal and external environment of the tent to prevent large temperature differences.
Do this by using all of the features of air circulation: tent open all Windows, clear the screens of mosquito net, attach the sobreteto to the ground and stretch well to get more air. Depending on the model, you can leave a part of the bedroom door open.
When you can’t avoid
In a climate too cold (usually below 10° C), this difference in temperature between the inside and outside is inevitable and naturally happens to condensation.
Obviously, in situations of extreme cold, it is natural that everything you don’t want to is that the cold get in your tent! All you want is the internal environment as warm as possible so you can sleep without going cold. In this case, the best thing to do is forget about condensation and bed as comfortable as possible, but still let some small opening somewhere.
The next day, when you wake up with the inside of the tent wet, just take care not to touch the walls and not too wet the fabric of the room. In the morning, if possible open the door and Windows and let it dry naturally throughout the morning or day.
Just be careful not to keep the tent with the wet sobreteto. If this is unavoidable, to get home back from camp, open the tent and let it dry completely before putting on the package on hold next camping!
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